A rod of length `1.0 m` and mass `0.5 kg` fixed at ond is initially hanging vertical. The other end is now raised until it makes an angle `60^@` with the vertical. How much work is required?

A rod of length 1m and mass 0.5 kg is fixed at one end is initially hanging vertical. The other end is now raised until it makes an angle 60^(@) with the vertical. How much work is required ?

A rod of length 2 m and mass 0.5 kg is fixed at one end and allowed to hang vertically from a rigid support. Find the work done in raising the other end of the rod until it makes an angle of 60^(@) with the vertical. (g=10 ms^(-2))

A body of mass m hangs at one end of a string of length l , the other end of which is fixed. It is given a horizontal velocity so that the string would just reach where it makes an angle of 60^(@) with the vertical. The tension in the string at mean position is

A body of mass m hangs at one end of a string of length l , the other end of which is fixed. It is given a horizontal velocity so that the string would just reach where it makes an angle of 60^(@) with the vertical. The tension in the string at mean position is